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kernel: 5.10: allocate last level PTEs in high memory

Enable support for allocating user space page table entries in high memory [1],
for the targets which support this feature. This saves precious low memory
(permanently mapped, the only type of memory directly accessible by the kernel).

[1] https://www.kernel.org/doc/html/latest/vm/highmem.html

Signed-off-by: Rui Salvaterra <[email protected]>
Rui Salvaterra 4 years ago
parent
0989b7ad3a
commit
72d2c54ccb
7 changed files with 7 additions and 7 deletions
Split View Show Diff Stats
  1. 1 1
      target/linux/bcm53xx/config-5.10
  2. 1 1
      target/linux/ipq40xx/config-5.10
  3. 1 1
      target/linux/ipq806x/config-5.10
  4. 1 1
      target/linux/mediatek/mt7623/config-5.10
  5. 1 1
      target/linux/mvebu/config-5.10
  6. 1 1
      target/linux/x86/config-5.10
  7. 1 1
      target/linux/zynq/config-5.10

+ 1 - 1
target/linux/bcm53xx/config-5.10
View File 

@@ -159,7 +159,7 @@ CONFIG_HAS_IOMEM=y
 
 CONFIG_HAS_IOPORT_MAP=y
 
 CONFIG_HAVE_SMP=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HW_RANDOM=y
 
 CONFIG_HW_RANDOM_BCM2835=y
 
 CONFIG_HZ_FIXED=0

+ 1 - 1
target/linux/ipq40xx/config-5.10
View File 

@@ -189,7 +189,7 @@ CONFIG_HAS_IOMEM=y
 
 CONFIG_HAS_IOPORT_MAP=y
 
 CONFIG_HAVE_SMP=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HWSPINLOCK=y
 
 CONFIG_HWSPINLOCK_QCOM=y
 
 CONFIG_HW_RANDOM=y

+ 1 - 1
target/linux/ipq806x/config-5.10
View File 

@@ -176,7 +176,7 @@ CONFIG_HAS_IOMEM=y
 
 CONFIG_HAS_IOPORT_MAP=y
 
 CONFIG_HAVE_SMP=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HWMON=y
 
 CONFIG_HWSPINLOCK=y
 
 CONFIG_HWSPINLOCK_QCOM=y

+ 1 - 1
target/linux/mediatek/mt7623/config-5.10
View File 

@@ -265,7 +265,7 @@ CONFIG_HAVE_SMP=y
 
 CONFIG_HDMI=y
 
 CONFIG_HID=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HOTPLUG_CPU=y
 
 CONFIG_HW_CONSOLE=y
 
 CONFIG_HWMON=y

+ 1 - 1
target/linux/mvebu/config-5.10
View File 

@@ -198,7 +198,7 @@ CONFIG_HAS_IOMEM=y
 
 CONFIG_HAS_IOPORT_MAP=y
 
 CONFIG_HAVE_SMP=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HOTPLUG_CPU=y
 
 CONFIG_HWBM=y
 
 CONFIG_HWMON=y

+ 1 - 1
target/linux/x86/config-5.10
View File 

@@ -146,7 +146,7 @@ CONFIG_HID=y
 
 CONFIG_HIGHMEM=y
 
 CONFIG_HIGHMEM4G=y
 
 # CONFIG_HIGHMEM64G is not set
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HPET_EMULATE_RTC=y
 
 CONFIG_HPET_TIMER=y
 
 # CONFIG_HP_WATCHDOG is not set

+ 1 - 1
target/linux/zynq/config-5.10
View File 

@@ -225,7 +225,7 @@ CONFIG_HID=y
 
 CONFIG_HID_GENERIC=y
 
 CONFIG_HID_MICROSOFT=y
 
 CONFIG_HIGHMEM=y
 
-# CONFIG_HIGHPTE is not set
 
+CONFIG_HIGHPTE=y
 
 CONFIG_HOTPLUG_CPU=y
 
 CONFIG_HWMON=y
 
 CONFIG_HW_CONSOLE=y